Internal combustion engine



June 28, 1938. J w CATRQN 2,122,002 INTERNAL cbMB sTIoN ENGINE Filegl Jan. 25, 1957 4 Shee ts-Sheet 1 h i I In ve nior $347)]: llzq'atror; By 2mm A tiorneys Inventor W Jasqihll/ifiatrozz J w. CATRON INTERNAhCOMBUSTION ENGINE June 28, 1938.

Filed Jan'. 25, 1957 v9 M amma A iiorney June 28,1938. J, CATRQN 2,122,002

INTERNAL COMBUSTION ENGINE Filed Jar;3 25, 1937 4 Sheets-Sheet 3 @Q" f N 1X! I) I \A N 1 w; 0

a 4 i w L June 28, 1938. J,w ATRON 2,122,002

INTERNAL COMBUSTION ENGINE Filed Jan. 25, 1957 4 Sheets-Sheet 4 a a r Inventor (703430]: lvfcatron I By v A W m Patented June 28, 1938 PATENT OFFICE.

' INTERNAL COMBUSTION ENGINE v Joseph .W. Catron, Bigelow, Mo. Application January 25, 1937, Serial No. 122,265

2 Claims. (01. 123-56) This invention relates to internal combustion engines and more particularly to internal combustion engines of the two cycle types; an object of the invention being to provide. a compact form 5 of explosive engine adapted to produce great power with a high degree of efficiency.

The invention together with'its objects and advantages will behest understood from a study of the following description taken in connection mwith the accompanying drawings wherein:-

Figure 1 is a side elevational view of the engine.

Figure 2 is a longitudinal sectional view through 25 merals it will be seen that the internal combustion engine which is of the two cycle type comprises a crankcase 5 of suitable shape and dimension provided at its respective opposite ends with flanges 6 through the medium of which, together 30 with flanges I provided on one end of cylinders 8, and bolts 9, cylinders 8 are secured to the crankcase 5 at relatively opposite ends of the latter.

Interposed between each flange 6 and the 35 flange l of a cylinder 8 is a gasket l0.

A power piston II has anintermediate portion suitably shaped to work within the crankcase 5 and respective opposite end portions l2 that have. a working fit within the cylinders 8 40 At opposite sides thereof the crankcase 5 is provided with bearings l3 in which are journaled crankshaft sections I' l. At the inner ends thereof the crankshaft sections M are provided with crank arms l5 which atone end are enlarged as 45 at l6 to increase the weight of the arms at said end.

The arms l5 are connected by a pin I! through the medium of which and a bearing I 8 the connecting rod I9 is connected with the crank arm.

;. To accommodate the crankshaft sections l4 transmitting power from the cylinder to the crankshaft.

The cylinders Bare provided with exhausts 22 that extend laterally therefrom and with intake valve .cylinders 23 that extend from the heads 5 of said cylinders.

Integral with or otherwise connected to the ends I2 of the piston I I are valve rods or core members 24 that have a Working fit in the valve cylinders 23 and are provided at their respective outer or free ends with fuel passages 25;

At their free ends the valve cylinders 23 are connected as at 26 with conduits 2! that lead from a suitable source of fuel supply, preferably a super-charger (not shown).

Also in the heads thereof the cylinders 8 are provided with spark plug holes in which are threaded spark plugs 28. I

The manner in which the. engine operates is thought to be obvious to those skilled in the art but may be briefly explained as follows:

As the piston ll moves, for example, from the position shown in Figure 2 to the right fuel from the super-charger passes through the valve port at the right of Figure 2 and into the cylinder 5 8 at the right of Figure 2 when the piston II has moved to the extreme right. Obviously as piston ll moves to the right, for' example, valve arm 24 on the right hand end of the piston ll moves into its cylinder 23 thus closing the passage 25 30 of the valve rod 24, just mentioned, and the fuel within the cylinder 8' at the right of Figure 2 is compressed and exploded as the piston ll completes this movement to the right. Also in this connection it will be understood that as the piston ll movesto the right the products of combustion in the cylinder 8 at the right of Figure 2 p will be forced therefrom through the exhaust 22 provided for the last mentioned cylinder.

, Obviously the force of the explosive charge in the cylinder at the right of Figure 2 will cause the piston l I to move towards the left and as this cycle of operation is repeated drive is transmitted to the crankshaftand to the work connected with the crankshaft for driving the latter.

It is thought that a clear understanding of the construction, utility and advantages of the invention will be had without a more detailed de-- scription it being understood of course that suitable ignition means with which the spark plugs 28 are connected, and other necessary instrumentalities' will be employed in conjunction with the engine embodying the features of the present invention.

said cylinders being provided with exhaust ports,

and means to deliver an explosive charge tosa'id cylinders alternately comprising a pair of valve cylinders extending axially from opposite ends of the first mentioned cylinders, respectively, and a pair of solid valve rods, slidablyfitting intosaid valve cylinders and extending axially fromopposite ends of the piston, respectively; eachrod being provided in the outerend thereof with an arcuate fuel delivery port opening at the ends thereof onto the outer end and peripheral face of the rod. J

2. In an internal combustion engine, a crank case, power cylinders secured to the crank case at the respective opposite ends of the latter, a piston having relatively opposite end portions working in said cylinders, a crank shaft journalled in the crank case and having its opposite ends extending through slots in diametrically opposite sides of the piston, and a central crank portion located in said piston, a connecting rod connecting said crank portion with said piston, and means to deliver an explosive charge to said cylinders alternately, comprising a pair of valve cylinders extending axially from opposite ends of the first mentioned cylinders, respectively, and a pair of solidvalve rods slidably fitting into said valve cylinders and. extending axially from oppo- "s'ite'ends'of the piston, each rod being provided JOSEPI-I- W. CATRON. 

